Minnesota, Arizona, Illinois and others are changing requirements to make it easier to teach in public schools

In the face of a worsening teacher shortage, several states around the country are loosening requirements for credentials that will make it easier to teach in public school classrooms.

Minnesota, Arizona and Illinois each revamped their licensing process this year to deal with a scarcity of educators. Utah did so last year, and Connecticut now is weighing whether to overhaul its certification process for the first time in two...